Partnered Output Coils - Free Energy

[EMJunkie]

No im not.
Faradays law states that a change in magnetic !flux!(the increase or decrease of a magnetic field) through a conducting loop creates an EMF in that loop.

Quote Wikipedia: According to Faraday's law of induction, since the same magnetic flux passes through both the primary and secondary windings in an ideal transformer,[7] a voltage is induced in each winding,

Soooo-if all the flux is contained within the core,and there is no flux leakage from that core,then how is an EMF produced in the conducting loop's???.
The answer is simple. The flux is not contained within any transformer core,as it also passes through the windings that are around the outside of the core.

Where you have an increase or decrease of magnetic field strength,you have a change in magnetic flux. Flux linkage is simply an alternative term for total flux. So, for there to be any flux linkage(magnetic flux),cutting the conductor,there has to be flux leakage from the magnetic core-->so no,the magnetic flux is not contained within the core.

Pictured Below is a very early Transformer, you can see the Primary and Secondary are separated by a distance.

The best way to visualize this, is to imagine: If all the Flux from the Primary were to Leak Out and Not make it to the Secondary, there would be no Induction in the secondary. Conversely, if all the Flux were to Link the Primary and Secondary together then Induction would occur in the Secondary and an EMF would be seen on the Secondary Terminals.

This is why Flux Leakage is typically not desired in a transformer! It is considered as a Loss in the Transformer.

Flux Linking and Flux Cutting are different principals! Both create Induction!!!

   Chris Sykes
       hyiq.org

[EMJunkie]

The magnetic flux does not need to touch the winding in order to induce emf/current in it.  This is a well known fact in EM engineering.

Merely increasing the winding diameter and keeping it further away from the core (and any flux leakage) does not change the induction.
If the flux leaks outside of the core then it can be detected by a small magnet, otherwise it cannot.  At 50/60Hz the vibration of the magnet can be felt by hand.  Deliberately creating a flux leakage from the core - decreases mutual inductance. 

According to legacy science the Faraday's induction happens magically at a distance....or if you prefer, because of a changing vector potential, that drives the electrons in the winding.  I am just quoting, this is not what I believe in.

@Verpies - Can you explain why you do not believe in the magnetic A Vector Potential?

This is a very interesting debate!!!

   Chris Sykes
       hyiq.org

[EMJunkie]

How can that be correct when where ever there is a magnetic field there is magnetic flux.
Are you saying a magnetic field(and thus magnetic flux) are not needed to induce an EMF/current flow through a conductor?.

This is not correct. The tighter the coupling from winding to core to secondary winding,the greater the inductive coupling between the primary and secondary windings. This can be clearly seen in the case when a primary is wound on say 30% of the toroids circumference ,and a secondary is wound on another 30% of the toroids circumference opposite that of the primary. The greater the distance between windings and core,the less the inductive coupling between the primary and secondary coils.

@Brad - You're are correct! It is considered Lossy if the Primary and Secondary are Separated by a significant distance. The most efficient Transformers typically have Secondary would over the top of the Primary, not always however.

In the below picture, I have the top and bottom Magnets in the same direction, I have the middle Magnet opposing, in the opposite direction. Guess what happens when the middle Magnet is in the same direction as the Top and Bottom Magnets?

   Chris Sykes
       hyiq.org

[EMJunkie]

@Brad - You're are correct! It is considered Lossy if the Primary and Secondary are Separated by a significant distance. The most efficient Transformers typically have Secondary would over the top of the Primary, not always however.

In the below picture, I have the top and bottom Magnets in the same direction, I have the middle Magnet opposing, in the opposite direction. Guess what happens when the middle Magnet is in the same direction as the Top and Bottom Magnets?

   Chris Sykes
       hyiq.org

Something a little Intuitive!!!

Realising these steel cores are Saturated!!!

   Chris Sykes
       hyiq.org

[poynt99]

Are you saying a magnetic field(and thus magnetic flux) are not needed to induce an EMF/current flow through a conductor?.

I don't think verpies is saying that.

How can that be correct when where ever there is a magnetic field there is magnetic flux.

And whenever there is a changing magnetic field, there is also a corresponding changing ______ field.

If you can fill in the blank correctly, you will be 50% of the way to understanding how induction works and why it does not matter if the flux is confined to the core.